Pump 500W DC 48V Solar Water Pumps, Max head 393ft,7.9GPM Flow，3 inch Solar deep well submersible Pumps with MPPT controller float switch kits for home or farm

I have to say I was skeptical at first of buying this and even more skeptical when I received it because of how small and lightweight the pump was. I figured there was no way this little pump is gonna produce any legitimate amount of water out of a 130ft well. I was wrong but more on that later. Setup: For me the setup was fairly easy, I know the well will produce more than I can pump and I am pumping into a 1 acre pond rather than a tank so I did not bother with any of the level switches that turn the pump on and off based on well or tank level. It was just splice the wires together (I used a well splice kit from Menards), hook up the drop pipe (I used 1” poly pipe for potable water usage), connect a safety rope and drop it in the well casing and hooked it up to the solar panels. The only hiccup I had here which maybe the manufacturer can correct is that the tags on the pump cable (w, v, u) were not correct and made the pump spin backwards which results in the impeller unthreading and popping out. We switched one set of the wires at the controller and pushed the impeller back in and then when the pump started it re threads the impeller back in as it is spinning the correct way. I would recommend putting the pump in a 5 gallon bucket and starting it up briefly to ensure it is spinning correctly and pumping water. This would have saved us from having to pull the pump back out of the well after the initial startup attempt. Regardless it didn’t damage anything or cause too much grief so I am not docking it any stars for that. Performance: This little pump has exceeded my expectations. The pump curve they supplied seems to be accurate and maybe even a bit conservative in how much flow you should expect. The water level in my well is right at 130ft below ground and this pump is able to fill a 5 gallon bucket in under 1 minute (5.85 gpm). The controller also has worked well for my application as it shuts off when the sun isn’t shiny and runs on and pumps when it is shining. I am using 8 x 100w solar panels and still only get max rpms for about 4 hours a day. So if you think you can get by with 500w of power you will likely be disappointed. From what I can tell the controller tries to maintain ~70-75 volts by adjusting the pumps rpm’s up to 4000rpm. There really isn’t great instructions on any adjustments or settings changes on the controller to adjust really anything. I tried to press the “settings” button and it just give like a p-0 message that you can adjust but I have no clue what I am adjusting so I just least it alone. It has performed well out of the box with the default settings. Overall, it has been good so far for the money. The well company wanted to charge me 7500 for a solar pump setup so for the tots cost of this system I have saved a lot of money and still get good performance out of it.

This pump works so well!!! It was easy to install and pumps about 8 or 9 gallons per minute from a 30 foot deep well using 2 48v 400w panels in series.... The controller changes the pump rpm depending on the occasional cloud blocking some of the light... It is completely automatic and does not need you to be there at all.... I am so happy after trying 2 cheap solar pumps from Vevor which burned up within 2 hours....

I'm pretty impressed with this pump so far. I have it hung at 135ft. in our 4" well casing. The static water level is 85 feet. I did install the low water level sensor about 5 ft. above the pump down inside the well. The float is protected inside some 1" sch 20 PVC pipe with caps on both ends. Drilled some holes in the caps so the float can operate with the water level in case it pumps down. Initially I powered the controller with our 48V golf cart. It would produce a solid 5 gpm at 3100 rpm with 48v. After my solar panel installation was completed (4) panels each rated at 395 watts and 49.5 VOC. They are wired 2S2P. This works out to be about 98 volts in series then when paralleled with the other two series panels about 790 watts of total power. My solar array is 250 ft. away from the well due to shade. The pump is now producing about 8-9 gpm through a 5/8" garden hose. I have attached up 150ft. of water hose at the top of the well to simulate extra head and it still produces 6-7 gpm. I will later be doing some irrigation and pond filling so only time will tell but so far its a great value and seems to be decent quality. Read the manual to understand how the sensors work.

Three days in and this well pump has been fantastic. This pump (500w, 48v version) is smaller than I expected, think smaller than two wine bottles stacked without the necks. The directions have typos and larger mistakes, but the wiring instructions are correct and clear. The rest of the install is straight forward. We sent the pump 100' down and it was pushing 6-7gpm out at the surface. I then connected 300' of 3/4" PEX and a garden hose spigot. The pump was still pushing 4-5gpm. We're powering it with 4 200W solar panels in series and parallel so roughly 65V/70VOC and 500-800w depending on sun. The pump will slow down when it loses sun, but that's to be expected. Tips: You'll need three wire cable to connect the pump to the controller. The outlet is 1" barbed. It comes with three float switches, one for low water in the well, one for high water in the tank, and one for low water in a tank. The well does not turn back on when the high water float switch is no longer active, you need to use the low water float switch too or manually turn the pump off and back on. My one complaint - the controller does not remember its last state after it loses power. If you don't have any of the float switches connected and just turn off the pump, it will automatically power on the next day when it gets solar power again. If you have the appropriate float switches installed this shouldn't be a problem, but if you want to manually control the well you need to disconnect the solar panels for the well to stay off. I'm thrilled.

I have had one of their 270W units running for a month now. 270 watt solar panel lifting 10 ft and pushing water 140 ft horizontally through and 1.25 inch pvc line when the sun shines bright..very close to 5 Canadian gallons a minute and lower light it still pumps at about 30vs just received their 500 watt pump and controller installing soon. class A product and support all the way around! we shall see how long the products last

This pump and controller work fantastic however the high water sensor and low water sensor did not work well so I improvised and put a billage pump float in and now it works perfectly. If the sensors had workes I would have given it 5 stars